iPhone unresponsive to charging. Connection slot broken

Sorry I'm having a difficult time wording this correctly. In the connection port of the iPhone there is a connection point that slides into the charger's connection. This connection point inside my phone has been broken. I can get it to charge but I have to spend a good ten minutes unplugging and replugging it in so I don't expect the connection point inside to last long.

I plan on replacing it, but I was wondering what part I need to get for it? If any further elaboration is needed please do say so.